XML 43 R35.htm IDEA: XBRL DOCUMENT v2.4.0.6
Inventories (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Summary of inventories    
Raw materials and subassemblies $ 5,274 $ 2,508
Finished goods 1,144 1,133
Parts for resale 727 684
Obsolescence allowance (709) (427)
Inventory, net $ 6,436 $ 3,898